EverythingMCP Server

Added to Onei Jul 22, 2026

Summary

A reference/test server that exercises every MCP feature — prompts, resources, tools, and sampling — for building and debugging clients.

Installation

Set up this MCP server in your favorite AI agent — copy a ready-made configuration below.

Any MCP-compatible agent

Most agents (Claude, Cursor, Windsurf, VS Code, and more) read a standard mcpServers configuration.

Open your agent's MCP configuration file.
Merge the snippet below into it.
Restart the agent — the "Everything" tools will be available.

{
  "mcpServers": {
    "everything": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-everything"
      ]
    }
  }
}

Claude Code

Add the server with a single CLI command.

claude mcp add everything -- npx -y @modelcontextprotocol/server-everything

Claude Desktop

Add the server to claude_desktop_config.json (Settings → Developer → Edit Config).

{
  "mcpServers": {
    "everything": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-everything"
      ]
    }
  }
}

Description

The Everything MCP server is a reference and test server that exercises the full MCP protocol: prompts, resources, tools, sampling, and more. It is intended for developers building or debugging MCP clients who want a server that demonstrates every capability.

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